CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Revenue	$ 420,012	$ 398,502	$ 914,309	$ 853,108
Operating expenses	366,368	343,987	742,853	684,998
Gross margin	53,644	54,515	171,456	168,110
Corporate general and administrative expenses	22,050	15,793	40,761	31,391
Operating income	31,594	38,722	130,695	136,719
Other (expense) income:
Interest expense	(5,884)	(5,534)	(10,395)	(9,175)
Gain on sale of operations, net	0	0	0	99
Other income, net	2,483	5,421	11,907	10,533
Total other (expense) income, net	(3,401)	(113)	1,512	1,457
Income before income tax expense	28,193	38,609	132,207	138,176
Income tax expense	8,400	11,746	35,530	38,153
Net Income	$ 19,793	$ 26,863	$ 96,677	$ 100,023
Earnings per share:
Basic (in dollars per share)	$ 0.39	$ 0.54	$ 1.93	$ 1.99
Diluted (in dollars per share)	$ 0.39	$ 0.53	$ 1.92	$ 1.98
Basic weighted average shares outstanding (in shares)	50,111	49,963	50,079	50,164
Diluted weighted average shares outstanding (in shares)	50,276	50,385	50,248	50,639
Comprehensive income:
Net income	$ 19,793	$ 26,863	$ 96,677	$ 100,023
Other comprehensive (loss) income, net of tax	(142)	1,537	876	324
Comprehensive income	$ 19,651	$ 28,400	$ 97,553	$ 100,347